Find the following values without a calculator.
Which is smaller?
- 1.8 cm or 0.18 m
- 4.9 ℓ or 490 mℓ
- 93 km or 9300 m
(a)
1 m = 100 cm
0.18 m = 0.18 x 100 = 18 cm
1.8 cm < 18 cm
1.8 cm < 0.18 m
(b)
1 ℓ = 1000 mℓ
4.9 ℓ = 4.9 x 1000 = 4900 mℓ
4900 mℓ > 490 mℓ
4.9 ℓ > 490 mℓ
(c)
1 km = 1000 m
93 km = 93 x 1000 = 93000 m
93000 m > 9300 m
93 km > 9300 m
Answer(s): (a) 1.8 cm; (b) 490 mℓ; (c) 9300 m